Regex Highlighter

Highlight matching text in real-time using your custom regular expressions.

Tool

Enter your Regex pattern, flags, and test string.

Regular Expression

//g

Flags

Global (g) - Find all matches

Case Insensitive (i)

Multiline (m) - ^ and $ match start/end of line

Dot All (s) - . matches newline characters

Unicode (u) - Treat pattern as sequence of Unicode points

Sticky (y) - Match only from index indicated by lastIndex

Test String

Result / Matches Highlighted

The quick brown fox jumps over the lazy dog.

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